Šimulčik, Damir, Ivan Bošnjak, and Marinko Jurčević. “Asymmetric Competition in Network Services Provision in the Telecommunications Subsystems”. Promet - Traffic&Transportation 10, no. 1-2 (1): 33-38. Accessed May 16, 2024. http://traffic.fpz.hr/index.php/PROMTT/article/view/918.